20.4
10/25/1988
RPI 940
The letters patent expired on 04/18/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
Michelin & Cie.
FR
Inventors
C. J. (pessoa física)
C. A. (pessoa física)
IPC Classification
Priority claims
FR
78-21 347 · 07/27/1978
Publications in the Brazilian Industrial Property Gazette (RPI).
10/25/1988
RPI 940
#16.1
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12/06/1983
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04/18/1995
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